linux-kernel - [PATCH] s390: boot: compressed: misc: Express the return value of _sclp_print

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Message-ID: <54A7B663.3010507@sunrus.com.cn>
Date:	Sat, 03 Jan 2015 17:29:07 +0800
From:	Chen Gang <gang.chen@...rus.com.cn>
To:	schwidefsky@...ibm.com, heiko.carstens@...ibm.com
CC:	linux-s390@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] s390: boot: compressed: misc: Express the return value of
 _sclp_print_early()

_sclp_print_early() has return value: at present, return 0 for OK, 1 for
failure. It returns '%r2', so use 'long' as return value (upper caller
can check '%r2' directly). The related warning:

    CC      arch/s390/boot/compressed/misc.o
  arch/s390/boot/compressed/misc.c:66:8: warning: type defaults to 'int' in declaration of '_sclp_print_early' [-Wimplicit-int]
   extern _sclp_print_early(const char *);
          ^

At present, _sclp_print_early() is only used by puts(), so can still
remain its declaration in 'misc.c' file.

Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
 arch/s390/boot/compressed/misc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c
index 57cbaff..09003b2 100644
--- a/arch/s390/boot/compressed/misc.c
+++ b/arch/s390/boot/compressed/misc.c
@@ -63,7 +63,7 @@ static unsigned long free_mem_end_ptr;
 #include "../../../../lib/decompress_unxz.c"
 #endif
 
-extern _sclp_print_early(const char *);
+extern long _sclp_print_early(const char *);
 
 static int puts(const char *s)
 {
-- 
1.7.9.5
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